I found two types of dc sports 4-1 header. 1 with bung and 1 without. Both has the description for 94-99 GSR. I'm worrying about the length... if its the same?

with bung

without bung

 

If you have a 94-99 GSR, you need the header with no o2 bung at all. It has a shorter collector, and depending on what year car you have you will have one bung in the cat (94-95) or two bungs in the cat (96-99).

If you have a 94-01 LS or 00-01 GSR, you need a header with one bung in the collector (longer length), because the cat has one bung (96-01) or no bung (94-95) depending on year.

Look up the part # on the DC website, and make sure you are looking at the USDM ones, and not the 4-1 JDM Type R replicas, because those will have a larger collector that will require some customization. The USDM ones are bolt-ons as long as you get the correct year and trim combination. I am pretty sure the first auction you posted is simply the wrong picture for the part # they reported in the description.

 

My guess is the one w/ the bung is just the generic picture (probably the same picture they use for civics, accords, other integras, etc) and that they'd probably send you the correct one. Thats what Ive seen in the past anyway.